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Mission

As DDOT is charged with providing a safe transportation system by maintaining a high quality traffic control system, including traffic signals and street lights, DDOT shall:

  • regularly evaluate the need for adjustments to traffic signal timing to minimize unnecessary automobile idling.
  • review timing on pedestrian signals to ensure that adequate time is provided for crossing, particularly for locations with a large elderly population.
  • place and maintain traffic control devices on all District streets and highways as necessary to regulate, warn, or guide traffic.

Procedures & Services 

Residents may request traffic signal issue investigations by calling the Mayor's Citywide Call center at 311, or visiting 311 Online, and submitting a request.

DDOT shall adopt the Federal Highway Administration's (FHWA) Manual on Uniform Traffic Control Devices (MUTCD) as the official standard for traffic signs, traffic signals, pavement marking, and traffic control devices. (DCMR 18-2100).

See Also

Legal References
​Design Standards & Specifications
​Transportation Plans & Studies

​Other Resources

Page Last Updated: March 19, 2014